Automatic Encoding of a View-Centered Background Image in the Macaque Temporal Lobe
Automatic Encoding of a View-Centered Background Image in the Macaque Temporal Lobe
复制标题
猕猴颞叶中以视图为中心的背景图像的自动编码
DOI：
10.1093/cercor/bhaa183
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发表时间：
2020-12-01
期刊：
影响因子：
3.7
通讯作者：
Naya, Yuji
中科院分区：
文献类型：
--
作者：
Chen, He;Naya, Yuji
沿着腹侧视觉通路到海马（HPC）的感知处理被假设为通过从视网膜定位空间到关系空间的信号转换来证实，关系空间代表组成视觉元素之间的相互关系。然而，我们的视觉感知必然反映基于视网膜空间的第一人称视角。为了研究视知觉的两面性，我们比较了猴子注视物体和注视屏幕中心时颞叶（前颞下皮层、嗅周和海马旁皮层以及HPC）的神经活动。我们发现，除了空间不变的对象信号，颞叶区域自动表示一个大规模的背景图像，指定受试者的观看位置。这些结果表明，两个不同的视觉信号的组合关系空间和retinotopic空间可能提供第一人称的角度为感知和推测随后的情节记忆。
Perceptual processing along the ventral visual pathway to the hippocampus (HPC) is hypothesized to be substantiated by signal transformation from retinotopic space to relational space, which represents interrelations among constituent visual elements. However, our visual perception necessarily reflects the first person's perspective based on the retinotopic space. To investigate this two-facedness of visual perception, we compared neural activities in the temporal lobe (anterior inferotemporal cortex, perirhinal and parahippocampal cortices, and HPC) between when monkeys gazed on an object and when they fixated on the screen center with an object in their peripheral vision. We found that in addition to the spatially invariant object signal, the temporal lobe areas automatically represent a large-scale background image, which specify the subject's viewing location. These results suggest that a combination of two distinct visual signals on relational space and retinotopic space may provide the first person's perspective serving for perception and presumably subsequent episodic memory.